Wrench



E. B. BROOKSYHIRE.

WRENCH.

APPLlcATloN FILED 1AN.2 B. 1920.

1,73929@ Patented Mar. 29, 1921.

nti-inne. nnooirsrrrnn, or nnnoeano, nanssaassienoa or cnn-nerr To n. n.

' rnotnnns, Aor Ermanno, Kansas.

' wennen.

Specification of Letters Patent. ,Patgndr gjl;

application ined January 2s, 1920. sei-iai No. 354,668.

T0 all whom t may concern.'

Be, it known that l, Eninrr B. Broer;-

sI-rinn.:` a citizen of the United Statearcsidingrat llldorado9 in the county of Butler and State of ansas7 have invented certain new and useful lmprovements inllfrenches, of which the following is a speciiicationf rllhe invention relates vto .Wrencheaand more particularlyyto the class 'of eccentric operating mechanism for wrenches5 visos-or thelike. f.

The primary object of the invention is the provision of a wrenchfof this character.

wherein the movable-jawoperated directly Y' h elevation thereof, the slide andthemovable from aV lever constitutingy the handle'oi the vwrench through the intermediary oi" aneccentric. or an equivalent structure. the eccentric being mounted on the lever in a novelmanner. so as to avoid any ,possible binding of the jaw when adjustedand also to eliminate play of said moi/able jaw, while accurate adjustment can be had rela# tive to the'work. l

Another object of the `invention is'the provision cfa wrench of this character, wherein the movable jaw is fitted within the body thereoiiin anovel manner'so as to be guided toward the stationary-jaw, which is an integral part of the body and also to relieve excessives-train upon thefpivots supporting theeccentric for operating the movable jaw and alsogthe connection oi the lever with the body of the wrench.

A further object ot the invention is the provision of a wrench ofthischaracter, wherein the-operating lever constituting the handle thereof isformedwith a forked arm or extension adapted to straddlethe slide carrying the movable aw so 'that-the structure will be equalized and distributed to both sides of the slide carrying the movable jaw and also the eccentric will be maintained in axial alinement with said slide7` eiiicient in its purpose,y strong,durable, and

inexpensive to manufacture.

'.l/Vith these and other objects in view, the

mventiongconsists inthe features ofw construction, combination and arrangement of parts; as will be hereinafter fully described, illustrated `in the i accompanying drawing and pointed out inthe claims hereunto appended.

In the Vacc ompanying drawing r v Figure 111s a .side elevation of a wrench `constructed ,in accordancewith the invention. y

,Figa 2 isa fragmentary vertical sectional riesponding yparts throughout the several views. in the drawing.

. Referring to the drawings in detail there is shown a. wrench construction,l it being understood of coursethat this invention is not limited` to thev same, as nit may be employed in connection with vises or other toolsl simulating the same and wrenches. The wrench construction comprises a body or head1() which is cut into `from one end and side tol provide a ,stationary.jaw-y 11 and formed transversely through said lbody or head adjacent to the jaw 11 `isa way 12 in which is fitted a slide 13 Ahaving formed thereon at right angles to the same ay jaw cok 14 which constitutes the movable jaw to cof operate with the stationary jaw 11 in the use of the wrench.

Formed in the body or head 10 and opening into the way 12 is a cavity or recess 15 i for accommodating the pivotally'supported portion 16 of ya curved operating lever 17 which constitutes thehandleof the wrench.

Theportion 16 has passed transversely therethrough centrally di the saine, a tlir'eadless bolt 1S which is riveted or otherwise secured in the opposite cheek 19 of the body or head 10 and in this manner the lever 17 is pivotally connected to the latter. i

T he ends of the walls of the cavity 15 next to the way 12 in the body or head 10 have formed thereon guide ribs 20, while the slide 13 is formed with a groove or channel 21 for receiving said ribs 20 in the movement of the slide transversely throughethe body 10, thus it being seen that the said` slide is prevented from lateral play or displacement and is positively vguided in its Y movement. i

`The portion 1G of the leverl is formed `with a forked extension or arm 22 adapted to straddle the slide 13, the limbs ofthe fork or associated part of said extension or arm 22 being fitted 'in notches 23 formed in opposite sides of the slide 13 provided adof the associated portion of the extension or arm 22, thus it being seen that the outer faces of the limbs of said forked extension 22 will be flush with the outer faces of the slide 13 due to'theiittingof said limbsof the forked extension or arm in the notches 23 in the slide 'and in this manner eliminating any interference with the free movement of the slide in the way 12in said body or head of the wrench. i

The portions of the cheek 19 of the body or head 10 constituting` the walls of the way 12 are provided with transversely alining holes or openings 26 which are located at the extreme limit of the opening throat of the extension or arm 22 for retracting the movable jaw away from thestati-onary aw of the wrench so that access may be had to the pivot 25 to enable the easy removal thereof when the occasion requires and also. to

permit. the introduction of the pivot in the assembling of the parts *ofV the wrench.

' In F ig. 6 of the drawing there is shown a slight modieation of the invention, wherein the slide 13 hasformed therein a squared recess 2'? for accommodating a slidable block 28 in substitute for the eccentric 'roller 24, the block 28 being supported upon the pivot prising side walls `and alower rib, a complementary movable jaw'member comprising a shank movable in saidy guide way and having a lower edge engaging said lower rib, vsaid shank being prevented from lateral movement'by said side walls, al lever pivotally mounted between the sidewalls of said head andterminating in a forked eX- y tension seated within curved notches on opposite sides of saidshank, a cut out portion in said shanka cam pivotally mounted between the forked extensions-of said lever and bearing-in the said cut outlportion of the shank whereby the'movable jaw is operated'to grip vand release the work, and' al registering opening in the walls of said head for assemblingthe wrench.

2. In a wrenehof the class described having a head terminating in a stationary jaw and a guide way formed at right angles `to said jaw'inv said headJ said guide way havingside walls, a complementary movable jaw member comprising a shank movable in Y said guide way Vand betweenthe walls and prevented from lateral movement thereby, a lever pivotally mounted between the y side walls of said head and terminating in aV forked extension seated within `curved notches on oppositesides of said shank, a cut-out portion lin said shank, a cam pivotally mounted between the forkedextension `of said lever and bearing'in said cutout portion ofthe shankwhereby the movable jaw is operatedto open and close the wrench and a registering opening in the walls of said headfor assembling the wrench. A

In testimony whereof l aPiX my signature hereto.

7 nnuaire. Bnooirsninn. 

